A 4-4.8GHz Adaptive Bandwidth, Adaptive Jitter Phase Locked Loop
Abstract
A low power, low phase noise adaptive bandwidth phase locked loop is presented in this paper. The proposed structure benefits from a novel lock status monitor unit (LSMU) that determines loop operation and loop bandwidth. The loop filter resistance and charge pump current are inversely proportional and bandwidth to reference frequency is maintained fixed. This structure is simulated in 0.18 μm CMOS technology and simulation results are presented.
Keywords:
low power, fast lock, adaptive bandwidth frequency synthesizerDownloads
References
J. Rogers, C. Plett, F. Dai, Integrated Circuit Design for High-Speed Frequency Synthesis, Artech House, 2006
J. G. Maneatis, “Low-Jitter Process-Independent DLL and PLL Based on Self-Biased Techniques”, IEEE Journal of Solid-State Circuits, Vol. 31, No. 11, pp. 1723-1732, 1996 DOI: https://doi.org/10.1109/JSSC.1996.542317
B. Razavi, Design of Integrated Circuits for Optical Communications, Mc Graw Hill, 2003
T. Wu, P. K. Hanumolu, K. Mayaram, U. Moon, “Method for a Constant Loop Bandwidth in LC-VCO PLL Frequency Synthesizers”, IEEE Journal of Solid-State Circuits, Vol. 44, No. 2, pp. 427 - 435, 2009 DOI: https://doi.org/10.1109/JSSC.2008.2010792
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